Take a picture of the MOSFET, is it TO-220?If you can't find the exact part
your better off replacing the two on the board with 3 new ones so they are
matched.I probably have better 63V electrolytics at work that are a good match.
Measure the spacing on the radial leads and let me know. If I have the parts
I'll send them free, Merry Christmas! You can send the pictures and info off
list, rodhower at ameritech dot net
On Sunday, December 13, 2020, 03:41:17 AM EST, David Chapman via EV
<ev@lists.evdl.org> wrote:
Opened up a brand new 36V 500 watt brushed DC motor controller that just
arrived to fix a loose wire and while re-soldering it I noticed that it had two
470uf 50V low esr polarized JWCO brand caps. Appear to my uneducated eye to be
aluminum radial electrolytics (11mm by 25mm green tube) seems like the cap
voltage is kinda low considering its a 36V unit and was thinking of replacing
them with something bigger / better quality. Any advice on what type of cap /
brand to use? The way the pcb is done I can only handle a 13mm diameter with
25-30 mm vertical. Seems like 680uf 63v @ 13mm x 25 - 30 mm is about the
biggest ones I am finding that will physically fit the pcb and enclosure. Also
the pcb has a place for a 3rd mosfet ( 2 existing ones marked SC 068R5NT EWOCKW
on 3 lines). Is this enough improvement to warrant the cost of the caps and the
mosfet? It is a $35 chinese controller and I probably got what I paid for (cold
solder joint on a main power wire ). Heavily in its favor is it ha
s the exact physical measurements I need for my project and difficult to
change later and would hate to have to find a better quality more expensive
unit and wait weeks for delivery. Trying to get this project done for Christmas
present.
By the way I am not finding much luck finding / crossing this mosfet. Googling
on "068R5NT" I get mosfets of various #s and when I include the "EWOCKW" that
is printed below the number on the body all that comes back is links to stuffed
Star Wars toy sites. I think they are "SC" brand? Any help / advice would be
greatly appreciated. Dach.
"Do what you can, with what you have, where you are" - Theodore Roosevelt
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